import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import params from '../components/goods/params.vue'
Vue.use(VueRouter)

const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: params }
      ]
    }
  ]
})
//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //任何人都可以访问登录页
  if (to.path == '/login') return next()
  //访问后拿到token，不存在就回到login
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  //如果存在token，直接放行
  next()
})
export default router
